158711980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{2281}}^1$

素因数の和:2375

約数の個数: 72

約数和(自身を含む): 393343776

約数和(自身を除く): 234631796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 245, 284, 355, 490, 497, 710, 980, 994, 1420, 1988, 2281, 2485, 3479, 4562, 4970, 6958, 9124, 9940, 11405, 13916, 15967, 17395, 22810, 31934, 34790, 45620, 63868, 69580, 79835, 111769, 159670, 161951, 223538, 319340, 323902, 447076, 558845, 647804, 809755, 1117690, 1133657, 1619510, 2235380, 2267314, 3239020, 4534628, 5668285, 7935599, 11336570, 15871198, 22673140, 31742396, 39677995, 79355990, 158711980]

約数ペア:

[(1, 158711980), (2, 79355990), (4, 39677995), (5, 31742396), (7, 22673140), (10, 15871198), (14, 11336570), (20, 7935599), (28, 5668285), (35, 4534628), (49, 3239020), (70, 2267314), (71, 2235380), (98, 1619510), (140, 1133657), (142, 1117690), (196, 809755), (245, 647804), (284, 558845), (355, 447076), (490, 323902), (497, 319340), (710, 223538), (980, 161951), (994, 159670), (1420, 111769), (1988, 79835), (2281, 69580), (2485, 63868), (3479, 45620), (4562, 34790), (4970, 31934), (6958, 22810), (9124, 17395), (9940, 15967), (11405, 13916)]